Achieving prevalence as an ideology in the political and social ferment of late 18th-century Europe and America, nationalism first found expression during the course of such historical upheavals as the American and French Revolutions. Its founders and early sponsors--Rousseau, Herder, Fichte, Korais, and Mazzini--looked to nationalism as the manifestation of modern humanity's most essential aspirations: autonomy, unity, identity. Born of notions regarding popular freedom and sovereignty that had been gathering momentum for generations, it conjured up images of a modernizing West at once hungry for change and yearning for a return to age-old concepts of fraternity and ancient heritage. Since that time nationalism, having taken on countless different dimensions, remains a vital and dynamic force for change--whether for good or otherwise.